Filter



PATENTV OEEIcE.

JOHN N. STEVENS, OF TOLEDO, OHIO.

FILTER.

SPECIFICATION forming part of Iietters Patent No. 265,177, dated September 26, 1882.

Application filed April 8, 1882. (No model.)

To all whom it may concern:

Be it known that I, JOHN N. STEVENS, of Toledo, in the county ot' Lucas and State of Ohio, have invented certain new and useful Improvements in Filters, of which the following is a full, clear, and exact description.

This invention consists of an improved construction ot iilters, designed to facilitate the settling of the matters contained in the water into a mud-space'hefore the water enters the ltering material; also, to facilitate the cleaning of the mud-drum and the filtering material at the same time by causing water to flow back through the filtering material from the clearwater pan into the mud-space under the filtering material, and thence directly out through a discharge-passage in a manner calculated to efficiently cleanse the lter, all as hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure l is a sectional elevation of my improved lter, taken on line y y of Fig.`2 and Fig. 2 is a horizont-al section of Fig. 1, taken on the line x x.

A represents a pan in the top of another deeper pan, B, to receive the water, and being readily removable therefrom, in which there is a spongecase,O,for the water to pass through on its way to pan B, said spongecase being provided with a removable cap, D, for open ing it to cleanse the sponge from time to time.

The sponge separates the larger particles ot' Y matter, and is located in the shallow pan A,

near the top of the filter, where itcan be readily removed frequently .to be cleaned. At the bottom of deep pan B the water passes laterally from said bottom through passage EWinto the bottom of another pan, F, equal in depth `to pan B, iu the bottom of which is a mud drum or chamber, G, partitioned from the space above by the perforated plate H, which in this case is slightly conical, but may be tlat or concave, as preferred.

Over the mud-chamberGthe ilteris located, said filter consisting of a bottom layer, I, of gravel, and a top layer of charcoal, J, over which the clear-'water pan K is placed to receive the water through its perforated bottom, and provided with a faucet, L, for drawing oft` the water. Pan K is also removable forA J, where the water will be largely freed ot' sediment by settling down on the bottom without entering the lter at all, while that which does enter it will be separated at the bottom of thetilter, where it will washv back into the mud-drum G and out through faucet M when ever water is poured into pau K and faucet M is opened and L closed. It will be seen that the arrangement is calculated to have the best effects; also, that the filter will not often require renewal. of the filtering material; also, thatitcan be washedout with verylittle trouble; also, that the parts can be readily taken out for cleaning orrepairs, and can be as readily replaced, and also thatthe constructionis simple.

For the filter I prefer to use an ordinary round tapered can, N, partitioned atO to separate the interior into two spaces, before described as pans B and F, the partition being made with a back, l?, and sides Q for stiifening it, and applied in the grooved ribs R,at tached to the interior of the can.

The mnd-drum may consist of an inverted cup placed in the bottom of pan F, with its bottom forming the partition H, the said cup being fitted tightly around the edge of said partition H to prevent the escape of water, except through the periorations, also to prevent the ltering material from falling down; but I do not limit myself to the particular construction shown, nor to the material used, which may be sheet metal, earthenwa-re, or other approved material.

Having thus fully described my. invention, I claim as new and desire to secure by Letters Patent--4 1. In a ilter, the combination ot' a lcan or other portable vessel provided with a vertical partition separating it into two apartments, yet` allowing water to pass under or through the partition, near its bottom, a mud-drum in the bottom of one of the apartments, provided with openings to allow water to pass from the IOC partition through its side and out at its top, filtering material over the mud-drum, and a faucet or suitable device for drawing the iltered water from above the filtering material, as shown and described.

2. The combination, with the can or vessel N, having guides It, ofthe partition O, iitted to slide in said guides, and perforated nearits lower end, and iltering material I J in one compartment of the can, above said holes in the partition, as shown and described.

3. The combination, with the can or vessel N, having guides It, the partition O, and filtering material I J, of the rta-enforcement to the partition, consisting of the sides Q and back P, as shown and described.

4. The combination, with the vessel N,.the movable partition O, having holes through its lower part, and the filtering material I J, of the movable disk G, perforated through its bottom and one side, and inverted in the vessel N, as shown and described.

5. The combination of the vessel N, perforated partition O, mud-drum G, filtering material I J, and faucets L and M, as shown and described.

6. The combination, with the filtering apparatus N O G I J, of a preparatory or auxiliary lilter consisting of the perforated dish A,

spougeG, and cap D, as and for the purpose specified.

JOHN N. STEVENS.

Witnesses:

FREDERICK L. GEDDES, RICHARD T. HosKiN. 

